中文摘要：

实验研究了不同的浇注温度及冷却强度下振动激发形核对Cr17铁素体不锈钢等轴晶形成及增殖的影响。结果表明振动激发形核增加等轴晶的形核基底,阻止等轴晶的过度长大,提高铸件的等轴晶率;与冷却液流量相比,浇注温度对等轴晶形成及增殖的影响较大。

英文摘要：

The effects of the vibrational excitation nucleation with different pouring temperature and cooling intensity on the equiaxed crystal formation and proliferation of Crl 7 ferritic stainless steel were researched in the experiment. The results show that： the vibrational excitation nucleation increases nucleation substrate of equiaxed crystals, prevents the excessive growth of equiaxed grain and improves nucleation rate of equiaxed crystal; compared with the coolant flow, pouring temperature has a greater influence on formation and proliferation for the equiaxed crystal.